ozone: Create GbmBuffers from fourcc formats and gbm flags.

ui/ozone/platform/drm/gpu/mock_scanout_buffer_generator.cc

Index: ui/ozone/platform/drm/gpu/mock_scanout_buffer_generator.cc
diff --git a/ui/ozone/platform/drm/gpu/mock_scanout_buffer_generator.cc b/ui/ozone/platform/drm/gpu/mock_scanout_buffer_generator.cc
index c37020276d614b12e9741e818c0c7873e18c1adf..aa2dd0fd7f7ce54e62a40467de3be4d83a7e657e 100644
--- a/ui/ozone/platform/drm/gpu/mock_scanout_buffer_generator.cc
+++ b/ui/ozone/platform/drm/gpu/mock_scanout_buffer_generator.cc
@@ -15,10 +15,9 @@ MockScanoutBufferGenerator::~MockScanoutBufferGenerator() {}
 
 scoped_refptr<ScanoutBuffer> MockScanoutBufferGenerator::Create(
     const scoped_refptr<DrmDevice>& drm,
-    gfx::BufferFormat format,
+    uint32_t format,
     const gfx::Size& size) {
-  scoped_refptr<MockScanoutBuffer> buffer(
-      new MockScanoutBuffer(size, GetFourCCFormatForFramebuffer(format)));
+  scoped_refptr<MockScanoutBuffer> buffer(new MockScanoutBuffer(size, format));
 
   return buffer;
 }